
13-10
HP Procurve Stack Management     
HP Procurve Stack Management
HP Procurve Stack 
Management
Overview of Configuring and Bringing Up a StackThis process assumes that:
■All switches you want to include in a stack are connected to the same 
subnet (broadcast domain).
■ If VLANs are enabled on the switches you want to include in the stack, 
then the ports linking the stacked swit ches must be on the primary 
VLAN in each switch (which, in the default configuration, is the 
default VLAN). If the primary VLAN is tagged, then each switch in the 
stack must use the same VLAN ID (VID) for t he primary VLAN. (See 
“Which VLAN Is Primary?” on page 14-7, and “Stacking Operation with 
Multiple VLANs Configured” on page 13-46.)
■If you are including an HP Procurve Switch 8000M, 4000M, 2424M, 
2400M, or 1600M in a stack, you must first update all such devices to 
software version C.08.xx or later. (You can get a copy of the software 
from HP’s Procurve website and/or copy it from one switch to anothe r. 
For downloading instructions, see appendix A, "File Transfers", in the 
Management and Configuration Guide you received with these 
switch models.)
Options for Configuring a Commander and Candidates.  Depending on 
how Commander and Candidate switches are configured, Candidat es can join 
a stack either automatically or by a Commander manually a dding (“pulling”) 
them into the stack. In the default configuration, a Candidate joins only w hen 
manually pulled by a Commander. You can reconfigure a Commander to 
automatically pull in Candidates that are in the default stacking configura-
tion. You can also reconfigure a Candidate switch to either “push” itself into 
a particular Commander’s stack, convert the Candi date to a Commander (for 
a stack that does not already have a Commander), or to operate as a standa-
lone switch without stacking.  The following table shows your control options 
for adding Members to a stack.